It's always Lewis who has to let it go and move on, isn't it?!
Let go of the racial comments dressed as jokes, let go of the racial bias, let go of how they doubted and still doubt him.
Let go of the abuse, let go of how different he's been treated.
He is the one who needs to let go of what happened in 21' and move on.
A huge part of why his fan base is as closed in on itself is because they are 24/7 trying to validate his place in a sport where he's not allowed to feel and be human without backlash.
His story in f1 is a cycle of: when he's snappy he should be more level headed, when he answers on track it's mind games, when he talks he should take it on the chin, when he keeps quiet it's all pr agenda.
So yeah, Newey, we get you'd deal with what happened differently, but you weren't in that car. You didn't go through what he did. He doesn't need to let it go like you'd have supposedly done so.
His feelings, and however long it took for him to process them, are valid.
The one about the ship no one else cares about, or the deeply unpopular character, or the extremely unusual AU?
The fic that got no comments or kudos when you posted it?
Months or years from now, that fic might be exactly what someone is looking for in the sea of fics about all the popular characters, ships, and AUs.
Your fic might be the only fic out there that has what someone is looking for. The only fic that scratches the itch that it turns out you and that reader share.